Flinder's trench is a region within Norfolk Bay, to the south of King George Island (Tasmania), Australia, which used to demarcate the northernmost extent of a region which was rich with mussels and other oceanic invertebrates.
[1][2] This region extended to Smooth Island (Tasmania) and as far south as Taranna.
The region was subjected to unregulated fishing practices and dredging, leading to substantially reduced shellfish populations.
[3]